The Ing Engineering gauge is typical for longtrack blades only because it reads only down to a 16m rocker whereas the Marchese gauge can be used for long track and short track blades as well. The Marchese tool reads up to a 5m radius on the same scale, but is a little less accurate than the Ing gauge. You'll be able to tell the radius on an Ing Engineering gauge with a tolerance of about +/- 0.5m on the Marchese this is +/- 0.8m as an indication. However, its more difficult to read the Mahr clock of the Ing gauge than the Marchese clock. The Marchese clock has a 360° degree scale which makes reading the radius more easy and secure (the pointer is less nervous when you slide the gauge along the blade).

Reference chart for radius or bends measurements of your ice blades